| 沥青路面结构非线性瞬态三维温度场模型研究 |
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| 引用本文： | 罗桑,钱振东,白琦峰.沥青路面结构非线性瞬态三维温度场模型研究[J].交通运输工程与信息学报,2009,7(3):33-38,56. |
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| 作者姓名： | 罗桑 钱振东 白琦峰 |
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| 作者单位： | 1. 东南大学,智能运输系统研究中心,南京,210096
2. 东南大学,智能运输系统研究中心,南京,210096;江苏省交通科学研究院,南京,210017 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 为较准确地预测路面结构内部温度分布，解决实测耗费大的问题，作者以沪宁高速实体工程为例，基于热传学原理，建立了沥青路面结构体系的非线性瞬态3D温度场计算模型。借助路面所处地区的标准气象资料，确定温度场的边界条件和初始条件，并采用ADINA通用有限元软件进行分析求解。通过计算结果和实测值的对比发现，该模型具有很高的预测精度．计算结果表明：沿路面深度方向，温度、变温速率和温度梯度呈非线性分布并出现变化幅度减小、变化相位滞后的现象；日温差随路面深度增加呈指数分布迅速减小。本文研究结果可为高等级路面设计和材料选择提供可靠的温度依据．
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| 关 键 词： | 沥青路面 瞬态温度场 热分析 有限元法 模型 |
Research on the Model of 3D Nonlinear Transient Thermal Field of Asphalt Pavement |
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| LUO Sang,QIAN Zhen-dong,BAI Qi-feng.Research on the Model of 3D Nonlinear Transient Thermal Field of Asphalt Pavement[J].Journal of Transportation Engineering and Information,2009,7(3):33-38,56. |
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| Authors: | LUO Sang QIAN Zhen-dong BAI Qi-feng |
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| Institution: | LUO Sang1 QIAN Zhen-dong1 BAI Qi-feng1,2 1.Intelligent Transport System Research Center,Southeast University,Nanjing 210096,China 2.Jiangsu Provincial Traffic Research Institute,Nanjing 210017,China |
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| Abstract: | To predict the thermal distribution of the pavement effectively, a numerical modelof nonlinear transient thermal field for the asphalt pavement is established based on the heat conduction theory. And then, the initial and boundary conditions of the thermal field were obtained by analyzing the meteorologic datum. Finally, the thermal field of the asphalt pavement was simulated by ADNIA software and the model was verified by comparing the calculate results with the measured datum from Hu-Ning Highway. The res... |
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| Keywords: | Asphalt pavement transient thermal field thermal analysis finite element method model |
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